The Seeds of Death saw the second appearance of the Ice Warriors. They had been chosen for a reappearance shortly after broadcast of The Ice Warriors. The monsters had been popular, and it was hoped this would justify the high costs of their costumes. Of visual interest was Ferguson’s use of point-of-view and angled shots.
The TARDIS lands in a space museum on Earth in the late 21st century, where the Second Doctor, Jamie and Zoe learn that contact has been lost between Earth and the Moon. In this era, instant travel — T-Mat — has revolutionised the Earth. Its people have lost interest in space travel. The Doctor and his companions travel to the Moon in an old-style rocket and reach the Moonbase, control centre for T-Mat, only to find a squad of Ice Warriors have commandeered the base and plan to use the T-Mat network to their advantage.